The sister who attends a prestigious girls' school is called 'Onee-sama' and adored by her juniors, but at home she's at the mercy of her shut-in brother! Every day she's subjected to non-stop in-out sex and can't resist. The sister, worn out from too much sex, can't refuse her brother's demand to 'sleep with another woman!' She brings home a cute junior who idolizes her, makes a lesbian confession, and engages in intense kissing to put the junior girl under her control. The junior girl, entranced by her sister's confession, becomes the sacrifice to her brother's bestial lust! Helplessly, she is subjected to non-stop in-out sex.
